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#1
Windows Boot Manager issue with Dual Boot on different Hard Drives
Issue: after installing Windows 10 UEFI on Hard drive, I can't boot anymore on Windows 7 UEFI (SSD).
My main system, W7 UEFI, is on a SSD. I would like to have a backup system on a different drive (HD) in case my SSD fails so I can be up and running without losing any time. This drive is not plugged at all times. I plug it in only when I need to backup my files or need to boot on W10.
Yesterday, after unplugging my SSD SATA cable, I installed W10 UEFI on this backup HD (GPT). Everything went fine. Except now I can't boot on my W7 since the W10 install messed with the Windows Boot Manager in the BIOS. When I manually select my SSD to boot, it seems to try to boot but it goes back to the BIOS.
I imaged my W7 boot partitions so I can go back to the previous Windows Boot Manager state... but it'll mess everything for W10.
How can I make this working?